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Marton Balint e85f37d51e avfilter/af_astats: add support for selecting measured statistics 
set_metadata with many entries is not very efficient, and with small audio
frames the performance loss is noticable. Also with this very simple
calculations (like peak) can be even further optimized.

Unfoturnately there are some small differences in metadata and av_log info
output, so factorizing calculations and output might not worth the hassle.

Signed-off-by: Marton Balint <cus@passwd.hu>
2019-03-21 00:39:57 +01:00
compat additional math.h functions for djgpp 2018-11-28 22:16:07 +11:00
doc avfilter/af_astats: add support for selecting measured statistics 2019-03-21 00:39:57 +01:00
ffbuild Merge commit '7e5bde93a1e7641e1622814dafac0be3f413d79b' 2019-03-10 19:31:13 -03:00
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libavcodec avcodec/hevcdec: decode at most one slice reporting being the first in the picture 2019-03-20 19:53:12 -03:00
libavdevice lavd: Remove libndi_newtek 2019-03-20 10:42:10 +00:00
libavfilter avfilter/af_astats: add support for selecting measured statistics 2019-03-21 00:39:57 +01:00
libavformat lavf/latmenc: Error out for unsupported codecs. 2019-03-21 00:00:47 +01:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil lavu/qsv: allow surface size larger than requirement 2019-03-18 07:06:41 +08:00
libpostproc postproc/postprocess_template: remove FF_REG_sp from clobber list 2018-12-22 17:41:44 +01:00
libswresample Bump minor version for master after 4.1 branchpoint 2018-11-02 00:53:07 +01:00
libswscale swscale/ppc: Add av_unused to template vars only used in one includer 2019-03-20 10:21:55 +02:00
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RELEASE RELEASE: bump to 4.1.git 2018-11-02 00:55:49 +01:00

README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe is a simple analysis tool to inspect multimedia content.
  • Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.